Time-controlled gas-cock.



ITO-732,243. PATENTED JUNEBO, 1903. H. H. WARD.

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No. 732,243. PATENTED JUNE 30, 1 903 H- H. WARD.

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UNITED STATES Patented J'une 30, 1903.

HAROLD HUNTER WARD, OF BOREHAM WOOD, ENGLAND.

TIME-CONTROLLED GAS-COCK.

SPECIFICATION forming part of Letters Patent No. 732,243, dated June 30, 1903.

Application filed December 1,1902. Serial No. 133,497. (No model.)

To all whont it Wtay concern;

Be it known that I, HAROLD HUNTERWARD, a subject of His Majesty the King .of Great Britain, residing at Boreham \Vood, in the county of Herts, England, have invented a certain new and useful Improved Apparatus for Timing and Controlling the Flow of Fluids, of which the following is a specification.

My invention may be employed for various purposes where fluid must be supplied only for a certain period each day, said periods varying in length from day to day. Thus the invention may be employed for the automatic lighting of clock-faces or signs during the dark hours of the evening or night, the apparatus being adapted to control the supply of the artificial illuminating agent by turning it on or 01f in the case of gas or otherwise with other agents, such as electricity, at the commencement and termination of the dark hours, respectively, so that church and public clocks or signs may be conveniently and economically illuminated.

The apparatus is adapted also for other purposes requiring an automatic action an-,

nuallyfor timing work.

In the accompanying drawings the apparatus is shown in one of the forms as adapted to control the passage of gas, water, or other fluid, and in this- Figure 1 is a side elevation partly in section. Fig. 2 is a plan. Fig. 3 is. an end elevation with a pinion removed. Fig; 4 is a plan of a piston used with the apparatus, and Fig. 5 is a plan of a contact part which may replace the piston when the apparatus is altered or arranged for controlling an electric current. v

The apparatus in the form shown in Figs. 1 to 4 is adapted to control the flow of a fluid, such as gas or water, and consists of a cylinder 1, mounted on a suitable base and containing a rotatable hollow piston 2, in which is a port or gap 3 of a greater size or widthat one end than the other, as shown in Figs. 1 and 4. The cylinder in the case of gas is interposed in the gas supply-say to the clock-face-by connection with its inlet 4 and outlet 5, so that gas must flow through the port 3 of the piston, or in the case of water is interposed in the water-supplysay to an engine. Where it is desired to keep a gas spindle. by a suitable feather and groove or in other bracket 26, carried by the cylinder 1.

'by the taps 6 6.and suitable tubing or in other ways. The piston-rod 7 passes through a suitable stuffing-box and a bearing 8, outside of which it carries a gear-wheel 9, which is rotated from a suitable pinion of the clockwork-train or by a chain-gear from the hour- The wheel 9 is secured to the rod 7 ways, which will enable the latter to move longitudinally the'rethrough, but yet to rotate therewith, and a similar device secures to this Y rod an eccentric 10, the rod 11 of which is pivoted to an arm 12, which has a pawl 13, adapted stud 23 of a bracket, or otherwise movable about apoint. The upper ends of the levers 22 are each pivoted, respectively, to one end of a link 24, the other end of whichis pivoted to a lever 25, pivotally suspended from a The levers 24 24 are centrally pivoted to the trunnions 27 of a block 28, attached to the rod 7.

arms, and links provides a suitable connection between the worm-wheel 17 and the rod 7, whereby the latter may be moved longitudinally to and fro.

' In operation the gas or fluid will pass through the piston to the outlet, as stated, the port 3 allowing it to pass until in its rotation, which may occur once in twenty-four hours, the gas or fluid is cut off.

To vary the period for which the gas or fluid is allowed to pass, it will be seen that it is only necessary to bring a different part of the port opposite such opening, because such port varies in width, and to this end the piston is moved longitudinally by the means described, the worm-wheel17, which forms part of such means, being capable only, say, of an entire, rotation once a year, so that for onehalf of its travel the piston will pass its entire length over the outlet 5 in one direction and for the other half similarly its entire length in the opposite direction, thus providing for aminimum supplyon June 21 to a maximum supply on December 21 back to a minimum on June 21 again.

In Fig. 5 is illustrated a simple construction by which the passage of an electric current can be controlled. In this the piston 3 is replaced by a cylindrical block 29, of insulating material, in which is a metal plate 30, forming part of an electric circuit of a shape corresponding to the gap 3, the edges of the parts being separated by grooves 31. If new in place of the cylinder 1 a brush forming part of a circuit be employed, it will be seen that the circuit will be closed while the brush is in contact with plate 30 and openedat other times, the duration varying according to the width of the plate opposite the brush. The grooves 31 are to afiord a quick make-andbreak to avoid sparking.

It will he understood that the apparatus may be applied or adapted to other purposes requiring an automatic action annually for timing work according to sunrise and sunset. For instance, it may be used to control the operation of engines or motors which are required to do certain work at certain times,

varying with the working hours of a day, such as engines or motors used for pumping water and other purposes, and I include all such purposes in the term timing employed in both the specification and claims.

In the following claims where the word fluid is employed itis to be understood that electricity is included.

What I claim is- 1. The combination of two conduits for the flow of fluid, comprising a part rotatable to permit orinterrupt the passage of the medium employed, for a determined period, said part being also movable longitudinally for the purpose of increasing and decreasing the period of passage of said medium, and means for providing such rotary and longitudinal movements.

3. Apparatus for timingand controlling the flow of fluid, comprising a cylinder having an inlet and outlet, a piston in such cylinder having a port of greater size at one end than the other, means for rotating said piston to open and close an opening in said cylinder for a determined period, and means for moving said piston longitudinally for the purpose of increasing or decreasing said period.

4. Apparatus for timing and controlling the flow of fluid, comprising a cylinder having an inlet and outlet,a piston in such cylinder having a port of greater size at one end than the other, a piston-rod, a gear-Wheel on same, means whereby the rod is movable through the wheel, but can rotate therewith, a wormwheel, means for rotating same, and connections between the worm-wheel and piston-rod whereby the piston is moved longitudinally in its cylinder.

5. Apparatusfortimingandcontrollingthe flow of fluid, comprising a cylinder having an inlet and outlet; apiston in such cylinder having a port of greater size at one end than the other,-a piston-rod, a gear-wheel on same, means whereby the rod is movable through the wheel but can rotate therewith, a wormwheel, means for rotating same, such means being driven from the piston-rod, and connections between the worm-wheel and piston-rod wherebythe piston is moved longitudinally for the extent of its travel and is then reversed.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

HAROLD HUNTER WARD.

Witnesses:

RICHARD JAMES, GEORGE ISAAC BRIDGES. 

